| BRR2 | S. cerevisiae | U5 snRNP | PRP44, RSS1, SLT22, SNU246 | 246.2 | 237 |
| PRP19 | S. cerevisiae | PRP19 complex | PSO4 | 56.6 | 235 |
| PRP8 | S. cerevisiae | U5 snRNP | DBF3, DNA39, RNA8, SLT21, USA2 | 279.5 | 166 |
| SNU114 | S. cerevisiae | U5 snRNP | GIN10 | 114.0 | 159 |
| SYF1 | S. cerevisiae | PRP19 related | NTC90 | 100.2 | 124 |
| PRP2 | S. cerevisiae | Recruited at Bact complex | RNA2 | 99.8 | 116 |
| RSE1 | S. cerevisiae | 17S U2 snRNP | — | 153.8 | 111 |
| PRP46 | S. cerevisiae | PRP19 complex | NTC50 | 50.7 | 97 |
| CEF1 | S. cerevisiae | PRP19 complex | NTC85 | 67.7 | 87 |
| HSH155 | S. cerevisiae | 17S U2 snRNP | — | 110.0 | 83 |
| BUD13 | S. cerevisiae | RES complex | CWC26 | 30.5 | 81 |
| CUS1 | S. cerevisiae | 17S U2 snRNP | — | 50.3 | 71 |
| PRP45 | S. cerevisiae | PRP19 related | FUN20 | 42.5 | 70 |
| PRP9 | S. cerevisiae | 17S U2 snRNP | — | 63.0 | 66 |
| SMB1 | S. cerevisiae | Sm | — | 22.4 | 49 |
| CWC22 | S. cerevisiae | Recruited at Bact complex | — | 67.3 | 48 |
| LEA1 | S. cerevisiae | 17S U2 snRNP | — | 27.2 | 47 |
| SYF2 | S. cerevisiae | Recruited at C complex | NTC31 | 24.8 | 43 |
| CWC2 | S. cerevisiae | PRP19 related | NTC40 | 38.4 | 43 |
| HSH49 | S. cerevisiae | 17S U2 snRNP | — | 24.5 | 41 |
| CWC24 | S. cerevisiae | Recruited at Bact complex | — | 29.7 | 40 |
| CLF1 | S. cerevisiae | PRP19 related | NTC77, SYF3 | 82.4 | 40 |
| CWC15 | S. cerevisiae | PRP19 complex | — | 19.9 | 38 |
| ISY1 | S. cerevisiae | PRP19 related | NTC30, UTR3 | 28.0 | 37 |
| PRP21 | S. cerevisiae | 17S U2 snRNP | SPP91 | 33.1 | 35 |
| ECM2 | S. cerevisiae | PRP19 related | SLT11 | 40.9 | 35 |
| CWC27 | S. cerevisiae | Recruited at Bact complex | — | 35.0 | 29 |
| SMD2 | S. cerevisiae | Sm | — | 12.9 | 27 |
| YJU2 | S. cerevisiae | Recruited at Bact complex | CWC16 | 32.3 | 27 |
| PRP11 | S. cerevisiae | 17S U2 snRNP | RNA11 | 29.9 | 25 |
| CDC40 | S. cerevisiae | Second step factors | PRP17, SLT15, SLU4 | 52.0 | 24 |
| SNT309 | S. cerevisiae | PRP19 complex | NTC25 | 20.7 | 21 |
| SPP2 | S. cerevisiae | Recruited at Bact complex | — | 20.6 | 15 |
| PML1 | S. cerevisiae | RES complex | — | 23.7 | 14 |
| CWC21 | S. cerevisiae | | — | 15.8 | 14 |
| IST3 | S. cerevisiae | RES complex | SNU17 | 17.1 | 12 |
| BUD31 | S. cerevisiae | PRP19 related | CWC14 | 18.4 | 12 |
| SMX3 | S. cerevisiae | Sm | — | 9.7 | 9 |
| YSF3 | S. cerevisiae | 17S U2 snRNP | RCP10 | 10.0 | 9 |
| NTC20 | S. cerevisiae | | — | 16.0 | 8 |
| SME1 | S. cerevisiae | Sm | — | 10.4 | 6 |
| SMX2 | S. cerevisiae | Sm | SNP2, YFL018W-A | 8.5 | 4 |
| SMD3 | S. cerevisiae | Sm | SLT16 | 11.2 | 3 |
| SMD1 | S. cerevisiae | Sm | SPP92 | 16.3 | 3 |
| LUC7 | S. cerevisiae | | EPE1, EXM2 | 30.2 | 2 |
| PRP40 | S. cerevisiae | Recruited at A complex | — | 69.1 | 1 |
| NAM8 | S. cerevisiae | U1 snRNP | MRE2, MUD15 | 57.0 | 1 |
| PRP38 | S. cerevisiae | Recruited at B complex | — | 28.0 | 1 |
| SNU71 | S. cerevisiae | Recruited at A complex | — | 71.4 | 1 |
| LSM6 | S. cerevisiae | LSm | — | 9.4 | 1 |
| MUD1 | S. cerevisiae | U1 snRNP | — | 34.4 | 1 |
